A root text written by Dzogchen Ponlop Rinpoche, Āchārya Lama Tenpa Gyaltsen, and Āchārya Kelsang Wangdi. It presents the divisions and definitions of the Vaibhāṣika and Sautrāntika philosophical systems. Translated by Karl Brunnhölzl.
2024 eBook edition
2023 corrected edition (print)